Adjustable-link door



J. E. OGDEN.

ADJUSTABLE LINK DOOR.

APPLlCATION FILED MAY6.1920.

IOOOOO OOQOCKO J3 i? m J/Jr g V {EM/07:31

Patented May 17, 1921;

' JOHN EDWARD OGDEN, OFIMOUNIAINVILLE, NEW YORK.

- ADJUSTABLE-LINK noon.-

Application filed May 6,

. To all whom it may concern: 7

Be it known that I, JOHN EDWARD OGDEN, a citizen of the United States ofAmerica, and a resident of Mountainville, county of Orange, and State ofNew York, have invented certain new and useful Improvements inAdjustable-Link Doors, of which the following is a specification,reference being had to the accompanying drawings,

forming a part hereof.

This invention relates to improvements in doors of-the type used inwarehouses, pier sheds and similar places where large openings are to becovered and where the space through whichthe doors are'moved to open isvaluable and limited.

It relates more particularly to doors of which a section at least issuspended by links which swing such section of the door into asubstantially horizontal position when it is open. It is common practiceto have another section of the door slidable up onto the link suspendedsection before the latter is moved. Such doors are necessarily heavy andthe problem of counter-balancing them becomesquite complex.

The specific object of this invention'isto provide links of adjustablelength and connections between the link suspended door section and thelinks which are adjustable in position for the purpose of simplifyingthe counter-balancing adjustment of the installation.

Incidentally, other advantages are attained by this invention, whichwill appear in the following. specification, in which I will fullydescribe the invention, the novel features of which willbe set forthinap-v pended claims. Referring to. the drawings:

Figure 1 is an end elevation of a door of this general character with anembodiment of this invention applied thereto.

Fig. 2 is an elevation of a two-part link of adjustable length.

Figs. 3, A and 5, are elevatlons of parts of links of otherconstructions, which are also adjustable in length and which may be usedin carrying out this invention.

Fig. 6 is a sectional plan view of a part of the mechanism shown in Fig.1, the section being taken on the line 6-6 of the latter figure.

Fig. 7 is a side elevation of an ad ustable link pin plate of differentconstruction than that shown Figs. 1 and 6.

Specification of LettersPatent. PatenijedMay 1'7, 1921,

1920. Serial No. 379,221.

Fig. 8 is-a side elevation of another modification of a link pin plate.7

Like characters of. reference designate corresponding parts in all thefigures of'the drawings. i

1O designates a ating shaft and 12 a counterweight sheavedoor-header,"11 actuaffixed to theshaft. 13 is a. link support affixedto-the door header in desired posi tion as by bolts 13 passing throughdesired holes 13 ina flange whereby its'pok sition may be adjusted. Theside posts of the door openingare designated by 14, and 15 is a guideparallel with these side posts.

The upper door section, designated by 20, is of sufficient width toenable it to overlap the opening and rest' upon the side posts 14 whenit," is closed. Thisjuppe'r door section is suspended from thesuper-structure by a two-part link '21, 22rotatably connected with thesupport 13 and by link pin Q plates 23 with the edges of this doorsection f about'mid-way between thetop and bottom thereof. These platesprojecti'nwardly beyond, the side posts 14:.

According to thisinvention, the distance of the pivotal connectionsbetween the lower 1 ends of the links and the door posts is adjustablefor reasons which will be fully de scribed hereinafter.

At the sides of the upperdoor section are channels 24: which protect thesides and outer edges of this door section and form guides for thereception of "the lower door section. 1'

The lower'door section 30 has rollers 31 near itslower corners, whichrun in th'e guides 15. The vertical edges of the'upp'er I part of thelower door section enter the space between the inner surface-of theupper door section and'the inner flanges of the channels 24:.

l 32 designates one of the hoisting'ch'ains or cables of which there aretwo,alocated one at e'achof the opposite sides ofthedoor.

These run over the sheaves; 12 onflthe actuating shaft 11 and down tocounterweights 33. j I r 7 Before describing thenovel features of thepresent invention, the operation of doors per door section. This willuncover a"sub-' stantial part of the door opening, enough in r fact, tomake it usable. Projections, such as those formed by brackets 34 afiixedto the lower part of the lower door section limit the movement of thissection relative to the upper door section, by coming in contact ,withthe lower'edge of the latter.

Continued upward movement of the chains will cause the lower edge of thelower door section to move upwardly, guided by the rollers 31 inthetrack orguides 15, but this. continued upward movement of the loweredge of the lower door section will carry the lower edge of the upperdoor section with it. The other parts of both door sections, however,will swing inwardly, as permitted by the links 21, 22. This movement maybe continued until the door sections reach a horizontal position, or asfar as desired. v

In closing the door, the rotation of the shaft 11 in the oppositedirection will permit the rollers 31 to move downwardly in the guides 15and this will cause the links to swing back into their initial positionuntil the upper door section comes in contact with the door posts 14 atwhich time the guides on the upper door section formed by the channels24: will be in alineinent with the guides 15 below said door section,whereby the lower door section may now be lowered until the door openingis completely closed. c

To obtain a proper balance of doors of this type for the part of theoperation during which the'links and door sections swing, the length ofthe links and the distance of their connections with the upper doorsection from the door posts, must be taken into consideratlon as well asthe weights of the door sectlons. Heretofore-it has been necessar tomake a wei ht dia ram for each iny e: b

horizontal position of their connections with stallation to determinethe distance of the lower link pins from the door posts and to determinethe center of gravity of the door sections in all of their positions. Bythis tedious process a distance may be found which with a givencounterweight will cause the door sections to stand in any of theiroperative positions;

With this distance established the determination of the lengthof thelinks and the also possible to carry doors in stock ready for quickdelivery. Such links varyin some instances as much as three feet inlength.

The distance of the lower link pins from the door posts also has to bechanged on the field in many cases and so provision is made according tothis invention for making this distance adjustable.

In Figsfl and 2, the links are shown as made of two parts 21 and 2-2with holes 25 drilled in them, by which they may be connected by boltsor rivets 26 after the distance between their pivoted ends has beendetermined, or temporarily in difierent positions for the purpose ofexperimentally finding the desired length.

The link plate 28 is bolted to the edges of the upper door section as at'27. The link 7,

pin 10 projects from a flanged member 41 which. is slidable within alarger circle 42 in plate 23. Its position therein may be adjustedradially in every direction by means of set screws 43.

Itmay be seen that with these expedients 7 both the length. of the linksand the distance of the lower link pins from the door posts is madeadjustable. 1

Another way of makingthe links adjustable in length is shown in Fig.'3'in which the part 22 telescopes into the part 21 and is held againstlongitudinal movement therein by set screws 28.

Another way of constructlng' the links so j that they will be adjustablein "length is shown in Fig. 4, in which the parts21 and 22 are providednear their adjacent ends with right and left hand screw threads whichfit into a rotatable adjuster 29. This I arrangement provides forcomparatively short adjustments.

The device shown in Fig. 5 is a .turn buckle comprising right and lefthand threaded eye-bolts 50 and 51 fitted into a shackle 52. Anarrangement of this kind can be used with chain links or other forms ofsuspension links which are always under tension, as is the case in someof the doors of this type.

The link pin late shown in Fig. 7 is designated by the numeral 45. 46 isthe pin which projects therefrom. i Thisplate is afiixed to the edge ofthe door by a bolt 47 about which it canswing to vary the distance of P46 fF0111 the door post and after the proper distance has beendeterminedit can be aflixed to the door section by another bolt througha hole 48 in the plate 45.

trically from a circular member 5 6 rotatably supported in a plate 57affixed to the door section 20 by bolts 58. A set screw 59 is In Fig. 8the link pin 55 projects eccen- 1 provided which passes through athreaded aperture in the plate 57 into engagement with the member 56 inorder to hold it It is not necessary that the doors stand verticallywhen closed or that the lower edges of the door sections movevertically. These edges have an up and down movement, how- 7 ever, andthe section or sections-are counterbalanced in some way either by thecounterweight shown or an equivalent device.

What I claim is: 1

1. The combination with adoor section, a counterbalance therefor, ahoisting element operatively connected between the lower edge of thedoor and the counterbalance, and means for guiding the lower edge ofthedoor section in a direction other than horizontal, of adjustable linkspivoted to points above the door section and to the sides of the doorsection intermediate the upper and lower edges thereof, and means foradjusting the length of said links.-

2. The combination with a door section, a counterbalance therefor, ahoisting element operatively connected between the lower edge of thedoor and the counterbalance, and means for guiding the lower edge of thedoor section in a direction other than horizontal, of adjustable linksupports above the door section, and adjustable linkshung from saidsupports and pivoted to the sides of the door section intermediate theupper and lower edges thereof.

3. The combination with a door section, a counterbalance therefor, ahoisting element operatively connected between the lower edge of thedoor and the counterbalance, and means for guiding the lower edge of thedoor section in a direction other than horizontal, of adjustable pivotson the sides of the door section intermediate the upper and lower edgesthereof, and links pivoted to points above the door section andconnected with said adjustable pivots.

4. The combination with a door section, a counterbalance therefor, ahoisting element operatively connected between the lower edge of thedoor and the counterbalance, and means for guiding the lower edge of thedoor section in a direction other than horizontal, of adjustable pivotson the sides of the door section intermediate the upper and lower edgesthereof, and adjustable links pivoted to points above the door sectionand connected with said adjust-able pivots.

5. The combination with a door section, a counterbalance therefor, ahoisting element operatively connected between the lower edge of thedoor and the counterbalance, and means for guiding the lower edge of thedoor section in a direction other than horizontal, of adjustable linksupports above.

the door section, adjustable pivots on the ,sides. of the door sectionintermediateltheupper and lowerv edges thereof, and adjustable linksbetween the link-supports and said pivots.

' The combination with door comprising'an upper section and a lowersection, a counterbalance therefor, a hoisting element operativelyconnected between the lower door section and the counterbalance, meansfor guiding the lower door section ina direction other thanhorizontal,means for guid ing the lower door section upwardly in relation-totheupper door section, and meansfor limiting the relative movement of thedoor sections and thereafter causing parts of both sections to moveupwardly together, of adjustable links pivoted to points above the doorsections-andto the sides-of the upper door section intermediate itsupper and lower edges.

I 7 The combination with a door comprising an upper section and alower'sectioma counterbalance therefor, a hoisting element operativelyconnected between the lower door section and the counterbalance, meansfor guiding the lower door section in a directionv other thanhorizontal, means for guiding the lower door section upwardly inrelation to the upper door section, and means for limiting the relativemovement of the door sections and thereafter causing parts of bothsections to move upwardly together, of adjustable link supports abovethe door' sections, and adjustable linkshung from said supports andpivoted to the sides of the upper door section intermediate'the upperand lower edges thereof.

8. The combination with a door comprising an upper section and a lowersection, a counterbalance therefor, a hoisting element operativelyconnected between the lower door section and the counterbalance, meansfor guiding the lower door section in a direction other thanhorizontahmeans for guiding the lower door section upwardly in relationto the upper door section, and means for limiting the relative movementofthe door sections and thereafter causing parts of both sectionsto'move upwardly together, of adjustable pivots on the sides of theupper door section intermediate the upper and lower edges thereof, andlinks pivoted to points above the door sections and connected with saidadjustable pivots.

V 9. The combination with a door'comprising an upper section and a lowersection, a

counterbalance therefor, a hoisting element operatively connectedbetween the lower door section and the counterbalance, means for guidingthe lower door section in a direction other than horizontal, means forguiding he l wer oo section upwardly in relation to the upper doorsection, and means door sections and thereafter causing parts'of bothsections to move upwardly together,

of adjustable pivots on the sides of the upper door section intermediatethe upper' and lower edges thereof, and adjustable links pivoted topoints above the door sections and connected with said adjustablepivots.

10. The combination with a door comprising an upper section and a lowersection, a

counterbalance therefor, a hoisting element my hand this 30th day of Aril, 1920. V

operatively connected between the lower ;door section and thecounterbalance, means for guiding the lower door section in a directionother than horizontal, means for guidof adjustable link supports abovethe door sections, adjustable pivots on the sides of the upper doorsection intermediate the upper and lower edges thereof, and adjustablelinks between the linksupports and said pivots.

In witness whereof, I have hereunto 'set "JOHN EDWA D OGDEN. Witness: vI

I. B. Moon r

